Global patent index - EP 0639860 B1

EP 0639860 B1 2000-06-28 - Non-volatile semiconductor memory

Title (en)

Non-volatile semiconductor memory

Title (de)

Nichtflüchtiger Halbleiterspeicher

Title (fr)

Mémoire semi-conductrice rémanente

Publication

EP 0639860 B1 (EN)

Application

EP 94115451 A

Priority

  • EP 89910179 A
  • JP 26537088 A
  • JP 22400689 A

Abstract (en)

[origin: EP0639860A1] A non-volatile semiconductor memory is disclosed comprising a plurality of basic blocks each having a plurality of non-volatile memory cells connected in series. For one of said memory cells a floating gate (16) is displaced in the direction of extent of a control gate (17) to partially cover from substantially the center of a channel region to one of the boundaries of the channel region in the direction of extent of said control gate (17), and for another of said memory cells said floating gate (16) is displaced in the direction of extent of said control gate (17) to partially cover from substantially the center of said channel region to the other of the boundaries of the channel region in the direction of extent of said control gate (17). <IMAGE>

IPC 1-7 (main, further and additional classification)

H01L 27/115; H01L 29/788

IPC 8 full level (invention and additional information)

G11C 16/04 (2006.01); H01L 21/8247 (2006.01); H01L 27/115 (2006.01); H01L 29/788 (2006.01)

CPC (invention and additional information)

H01L 27/11519 (2013.01); G11C 16/0483 (2013.01); H01L 27/115 (2013.01); H01L 27/11521 (2013.01); H01L 27/11524 (2013.01); H01L 29/7883 (2013.01); H01L 29/7885 (2013.01)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 0639860 A1 19950222; EP 0639860 B1 20000628; DE 68924849 D1 19951221; DE 68924849 T2 19960613; DE 68929225 D1 20000803; DE 68929225 T2 20001130; EP 0419663 A1 19910403; EP 0419663 A4 19910612; EP 0419663 B1 19951115; US 5323039 A 19940621; US 5597748 A 19970128; US 5824583 A 19981020; WO 9004855 A1 19900503

INPADOC legal status

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1995-05-17 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: ASANO, MASAMICHI

1995-05-17 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: IWAHASHI, HIROSHI

1995-05-17 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: KIRISAWA, RYOUHEI

1995-05-17 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: NAKAYAMA, RYOZO

1995-05-17 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: INOUE, SATOSHI

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- Inventor name: SHIROTA, RIICHIRO

1995-05-17 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: ENDOH, TETSUO

1995-05-17 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: MASUOKA, FUJIO

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